baber/WOPTO huggingface dataset:
Patent GB-352663-A (GB)
Title: Improvements relating to hydrogenation of aromatic compounds
Filed: 1930-05-28
Abstract: Propyl-guaiacols are prepared by the catalytic hydrogenation at ordinary pressure of eugenol and isoeugenol and their ortho compounds using copper or nickel as the catalyst.  In the case of copper the temperature range required is 250-270 DEG  C., whereas with nickel the range is 150-170 DEG  C.  Examples are given of the preparation of 4-n-propyl-guaiacol from eugenol and 6-n-propyl-guaiacol from o-eugenol by passing the vapour of the starting material in admixture with hydrogen over either copper or nickel at the appropriate temperature.  The copper employed is obtained by reducing dry copper oxide with pure hydrogen at 200 DEG  C. and the nickel by similar treatment of nickel oxide, carbonate or formate.  The Provisional Specification describes the invention as applicable to aromatic compounds containing ethylenic side-chains.ALSO:Propyl-guaiacols are prepared by the catalytic hydrogenation at ordinary pressure of eugenol and isoeugenol and their ortho compounds using copper or nickel as the catalyst.  In the case of copper the temperature range required is 250-270 DEG  C., whereas with nickel the range is 150-170 DEG  C.  Examples are given of the preparation of 4-n-propylguaiacol from eugenol and 6-n-propylguaiacol from o-eugenol by passing the vapour of the starting material in admixture with hydrogen over either copper or nickel at the appropriate temperature.  The copper employed is obtained by reducing dry copper oxide with pure hydrogen at 200 DEG  C. and the nickel by similar treatment of nickel oxide, carbonate, or formate.
Patent GB-1380122-A (GB)
Title: Semiconductor device and apparatus using the same
IPC: H03K19/088
Filed: 1972-04-10
Abstract: 1380122 Semi-conductor devices NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 10 April 1972 [10 April 1971 16 Aug 1971(3) 14 Sept 1971] 16464/72 Heading H1K [Also in Division H3] In a monolithic semi-conductor device comprising an array of unijunction transistors, each of which has a P type emitter region 4 situated in an N type wafer 1 between N<SP>+</SP> type collector and base regions 2, 43, and exhibits a currentcontrolled negative resistance characteristic between the emitter and collector regions when a bias is supplied between the base and collector regions, the separation between adjacent transistors is such that when one transistor Q1 is in the on state carriers are injected therefrom into the vicinity of the next transistor Q2 so as to influence the turn-over voltage thereof. In one embodiment (Fig. 31, not shown) the various regions of the adjacent transistors are staggered so that the turn-over voltage of the second element is increased by its proximity to the conducting element. In all other embodiments, however, including that illustrated in Fig. 10, the switching on of Q1 causes the turn-over voltage of Q2 to be reduced, and with appropriate biasing this may result in Q2 also being switched on. Each element may have a separate base region or, as shown, a common base region 43 may be provided, either as a single strip or, as shown, as an annular region surrounding the elements Q1, Q2, .... A common collector region may also replace the separate collectors 2 illustrated. Two rows of elements may be formed in the same wafer, coupled to one another only through a gap in a common base region otherwise surrounding both rows, and a variety of constructions based on this configuration is disclosed. In certain of these modifications one or more additional elements linking the two rows are provided in the gap in the common base region. Coupling between adjacent elements may be modified by providing extensions of the common base region 43 which protrude partly between the elements. These extensions may be shaped so that the degree of coupling differs in opposite directions. Inter-element coupling may also be modified by shaping the collector regions 2, or by the provision of recombination regions between the elements, and also optionally partly surrounding the elements. N+ or P type gate regions or metal gate electrodes may also be provided between the elements. Each of the embodiments may be further modified by providing a P type hook region around each collector region 2. A circular arrangement of elements is described in which a central element is coupled to each of a plurality of elements arranged around the circle, but the elements of the circular array are not mutually coupled. The device may operate as a shift register or logic circuit, and photo responsive and light emissive applications are also described.
Patent GB-594274-A (GB)
Title: New or improved clamp device for use in the erection of frame structures
IPC: E04B1/58
Filed: 1945-06-28
Abstract: 594,274. Clamps for joining structural frame members. COMINO, D. June 28, 1945, No. 16477. [Class 20(ii)] Frame members, e.g., tubes 8, 9, Fig. 3, are joined by clamping members each of which comprises a split body-part 1 having two flat square jaws 3, 4 the gap 2 between which is in line with the split, the jaws extending substantially tangentially to the bore in the body-part. Clamping members are secured by one or more bolts 10, the clamping action securing the frame members in the body-parts, and also the clamping members to each other. Shoulders 6, 7 are formed on the body-parts to receive the edges of the jaws of adjacent clamps. The inner face 12 of one jaw 4 lies approximately in the same plane as the axis of the body-part, whilst the plane of the outer face 13 of the outer jaw 3 lies slightly beyond the bore in the body-part. By this disposition of the jaw faces members 8, 9 may be coupled to cross each other, as in Fig. 3, or in the same plane, as in Fig. 1 according to the choice made of the meeting jaw faces. Various coupling arrangements are described. According to a modification, each clamping member may have an additional square tab on the body-part, disposed as shown at 14 on Fig. 6, the jaws of this clamping member being indicated at 4a, 3a on the Figure. By the association of clamping members 1, 1<1> without additional tabs, with the modified clamping member, three frame members 8, 9, 15 may be secured together mutually perpendicular to each other, as shown. Other applications of the clamping members to secure frame members in various dispositions are described. To secure clamping members other than at right-angles to each other, washers, which may be serrated, are inserted between the adjacent jaws.
Patent GB-345884-A (GB)
Title: Improvements in or relating to locking devices
IPC: E05B53/00
Filed: 1930-05-29
Abstract: 345,884. Bolt fastenings. LEUN, C. VAN DER, 40, Kroostweg, Zeist, Holland. May 29, 1930, No. 16552. Convention date, June 7, 1929. [Class 44.] In a locking device of the kind in which one or more bolts are moved into and out of position by means of a rotatable member or sprocket to which the bolt is indirectly attached, the movement of the rotatable member 6 is transmitted to the bolts 11, 12 by articulated members or chains 9, 10 arranged to act in push and pull, and pivoted to radial lugs 7, 8 on the member 6. Guides 13, 14 for the chains are arranged in the casing 5, and rollers may be mounted on the links to reduce friction. In the form shown in Fig. 3, both chains are connected to the same lug 24, and in another form three bolts are connected to three lugs. The member 6 may be operated by a handle on the spindle 16 or by a key ; or a cylinder lock may be embodied in it.
Patent GB-1242652-A (GB)
Title: Improvements in or relating to methods and apparatus for blow molding an oriented thermoplastic article
IPC: B29L22/00
Filed: 1969-03-28
Abstract: 1,242,652. Blow-moulded; oriented articles. HERCULES Inc. 28 March, 1969 [29 March, 1968], No. 16555/69. Heading B5A. An oriented thermoplastic article having a detailed projection is formed by heating the article-forming portion of a longitudinally oriented parison while maintaining it under tension to prevent longitudinal shrinking, blowmoulding the said portion in a cavity having projection-forming means, and moving a portion of the tube adjacent the projection-forming means towards it to fill the means and improve the detail definition. The apparatus described, Fig. 3, shows upper and lower clamping means 52, 53 respectively, mould halves 11 mounted on platens 10 which are mounted with lower clamping means 53 on frame 9 vertically reciprocable with respect to main frame 51 which carries the upper clamping means 52 and blowing nozzle 81. Blow mould halves 11 have a vertical cylindrical extension 24 in which slides an insert 26 biased upwardly by springs (41, Fig. 4, not shown), and having a downward extension 30. At the beginning of a moulding cycle, frame 9 and the mould parts 10, 11 and lower clamping means 53 thereon are in their raised position, mould halves 11 being open. A tubular preform, the article-forming portion of which has been heated, is placed between and held between clamping means 52, 53. Frame 9 is lowered, stretching the tube and mould halves 11 are closed pinching off the tube at 20. The rigid, unheated portion of the tube extends down into bore 33 of insert 26, and the oriented, heated portion extends down through the lower part of bore 33, bore 31 of extension 30, neck cavity 22 and mould cavity 14. After blowing the tube in cavities 14, 22 and in bores 31, 33, additional material is pushed downwardly into the threadforming surface of neck cavity 22 by depressing insert 26. This is effected after opening of upper clamping means 52 by cylinders 48 acting through pivoted levers 43 bearing on top section 34 of insert 26. The bottle is cooled by the blowing fluid, the mould 13 opened and the bottle removed, trimmed and reamed at the neck.
Patent GB-797088-A (GB)
Title: Process and preservative for treating cut plants
Filed: 1955-06-09
Abstract: A weak aqueous solution made by boiling comminuted leaves and seeds, leaves, seeds and stems or stems and bark of the Mamaki plant (Pipturus albidus, fam. Urticaceae) is used for preserving the freshness of cut plants having stems, e.g. leaves of New Zealand Giant Maidenhair ferns and flowers of the Vanda Orchid. The plants to be preserved are placed with their stems in water at 125-150 DEG  F. until as much water as they can hold has been taken in, are cooled by immersion in cold water, and are then immersed in the Mamaki liquid. The plants may be immersed in Mamaki liquid immediately after they are cut, before the warm water treatment takes place.  Immersion for 7-30 minutes in liquid prepared from Mamaki leaves and seeds may be followed by immersion for a similar period in liquid prepared from Mamaki stems and bark.  U.S.A. Specification 2,581,299 is referred to.
Patent GB-730256-A (GB)
Title: Improvements in safety devices in rope lifting or hoisting gear
Inventor: BURNS SYDNEY CHARLES
IPC: A62B1/20
Filed: 1953-06-17
Abstract: 730,256. Balancing-devices; guided skip hoists; safety catch gear. JENKINS & CO., Ltd. W. J. Jan. 8, 1954 [June 17, 1953], No. 16659/53. Classes 78 (2) and 78 (3). Catch gear for a skip hoist counterweight which is supported in a loop of the hoisting rope 3, comprises a mechanism which, on breakage of this rope, locks the counterweight thereto by means of a progressively increasing gripping action. A disc 23 secured to a frame 18 on the counterweight has pairs of arms 26 eccentrically pivoted thereon at 24, and on each pair of arms is a fixed jaw 27 and a movable jaw 28 secured to a rod 29 the end of which is normally located in a notch 31 in the disc. The rods 29 are also connected through pins and slots 33, 34 and links 36 with rods 37 which are secured to the pulley axle 21 and are normally urged upwardly by the tension in rope 3 against the action of springs 38. In the event of rope, 3 breaking the springs 38 cause the axle to drop in slots 22 so that, through rods 37 and links 36, the jaws. 28 are moved into light engagement with the rope 3 and the rods 29 are disengaged from notches 31. This effects initial deceleration of the counterweight whereafter the arms 26 pivot and, due to the cam action of the disc 23 on the rods 29, the grip is progressively increased until the counterweight is brought to rest. Downward movement of rods 37 also operates a switch 42 which then de-energizes the hoisting motor 50. The jaws 28 are serrated and the jaws 27 are provided with helical grooves. The invention is stated to be applicable to multi-rope systems. The counterweight is in three parts 11, 12, 13 connected together for lost motion by rods 14, 16. The catch gear is prevented from operating due to slackness in the cable when the counterweight is fully lowered and telescoped, by rods 44, secured to the part 13, which hold the axle 21 at the tops of slots 22.
Patent GB-913519-A (GB)
Title: Process for the production of stable non-heat coagulable protein preparations
IPC: A23J1/06
Filed: 1959-05-15
Abstract: Stable protein preparations which are not coagulated by heat are prepared by a process characterized in that the salt equilibrium of a solution of a proteinaceous material e.g. plasma, chicken protein, egg white, optionally purified by treatment with montmorillonite, is shifted sufficiently to prevent coagulation by heating.  The salt equilibrium is shifted by treatment with acids, alkalis or ion exchangers.  The montmorillonite may be an untreated neutral or an acid-digested montmorillonite and may be used in an amount 5% by weight of the proteinaceous solution used. After the treatment with montmorillonite the proteinaceous solution may be treated with activated carbon, or the montmorillonite may be added to the proteinaceous solution so as to be present during the treatment with activated carbon.  The proteinaceous solution may be treated with anionic and cationic exchangers in such a manner that the solution receives a weakly alkaline pH value or reaches the neutral point from an alkaline pH value.  The solution may be first passed over a cationic exchanger, then admixed with such an amount of a base or of an alkaline metal salt that the solution has a weakly alkaline reaction, with subsequent removal of the anions by means of an anionic exchanger.  The anionic exchanger may be highly agitated during the treatment.  The solution may be decolourised e.g. by adding 0.05 to 1% by volume hydrogen peroxide and heating on a waterbath, after the treatment with the cationic exchanger.  The cations of the base added before the treatment with the anionic exchanger may be removed by treatment with a cationic exchanger after the treatment with the anionic exchanger.  The solution may be rendered acidic before the treatment with the cationic exchanger by the addition of an acidic material e.g. an edible organic acid.  The solution may be neutralised after the ionic exchanger treatment and may finally be heat sterilized.
Patent GB-836320-A (GB)
Title: Improvements in shearing heads for dry shavers
IPC: B26B19/16
Filed: 1958-05-23
Abstract: 836,320. Dry shavers. SZEMZO, J. May 23, 1958 [May 27, 1957], No. 16730/58. Class 131 In a dry shaver head comprising a cylindrical perforated guard 1 and two spring steel cutting blades 16 clamped at their centres to a rotated drive shaft 6 part of the centrifugal force is counteracted by the straightening of leaf springs 9 from a longitudinally arched rest position to the straightened form shown in Fig. 1. Apertured razor blades, forming the cutting blades, are clamped between arcuate plates 12, 14 by screws 15 engaged in bores 13 in members 11 which are riveted to the plates 12 and engage in slots in the springs 9. Locating pins 17 loosely engaging apertures in the blades and plates are threaded in sleeves 8 securing the springs to the drive shaft. In modifications coil springs or abutments restrain the movement of laterally displaceable pins to which the blades are secured, the pins being mounted in a member which is axially removable from the drive shaft to provide an interchangeable head.
Patent GB-739991-A (GB)
Title: Improved means for use in the handling and grading of fruit
IPC: B07B13/00
Filed: 1954-06-08
Abstract: 739,991. Endless conveyers; feeding shoots. WILLIAMS, N. J., and WILLIAMS, E. J. June 8, 1954, No. 16744/54. Class 78 (1). Means for use in the handling and grading of fruit or the like comprises the combination with a grading machine of a bin for receiving the fruit or the like and directing it by gravity to the grader, which bin is so mounted that it normally inclines down to a forward delivery end to cause the fruit or the like to roll out through the delivery end, and, when the weight of the fruit or the like delivered into the bin exceeds the working capacity of the grader, the upper end of the bin will drop to stop delivery to the bin which will rise again when the excess of the fruit or the like has been disposed of by the grader. In the embodiment shown in Fig. 1, fruit is delivered from tipped trailers to an endless slat conveyer F whence it is fed by an elevator G to a shoot A leading to a grading machine at B. When excess fruit accumulates in the shoot A, this latter tilts downwardly about its pivot C against the action of a spring D so as to close a switch M which operates to cut off current from the motor L driving the conveyers F, G. In a modification, Fig. 3, where the elevator G is normally driven from a spindle N connected to the drive of the grader through belts N<SP>1</SP>, O<SP>1</SP>, the downward pivotal movement of the shoot A causes a lever R to move the belt N<SP>1</SP> from a fixed to a loose pulley on the shaft O whereby the drive to the elevator is discontinued.
Patent GB-925526-A (GB)
Title: Method of preparing true vitamin b or cyanocobalamin by fermentation process
Inventor: HOOREMAN MICHEL
IPC: C12P19/42
Filed: 1960-05-12
Abstract: Cyanocobalamin, or a concentrate containing a major proportion of cyanocobalamin is produced by a direct fermentation process in which cobaltous cyanide is added to the nutrient medium and the concentration of cobaltous and cyanide ions is kept constant throughout the fermentation.  Preferably sterile cyanide is added to the medium after it has been sterilized to avoid supersaturation.  In example Propionibacterium is grown on a medium containing cornsteep, yeast autolysate, casein hydrolysate and glucose and from 20 to 100 p.p.m. of cobaltous cyanide at 30 DEG . using moderate agitation. After fermentation for up to 84 hours the mass was centrifuged, washed and dried by atomization.  The product consists almost wholly of cyanocobalamin with a very small proportion of hydroxy cobalamin. Specifications 695,273 and 699,369 are referred to.ALSO:A powder containing 700 mg./kg. of cyanocobalamin and less than 50 mg./kg. of hydroxycobalamin is a growth promoting feed for cattle.  The powder may be made by a direct fermentation process for cyanocobalamin in which cobaltous cyanide has been added to the nutrient medium (see Group IV (b)).  Specifications 695,273 and 699,369 are referred to.
Patent GB-111512-A (GB)
Title: Improvements in Work Feed Mechanism for Power Presses.
Inventor: RAILING ADOLPH HARRY
IPC: B21D43/10
Filed: 1916-11-25
Abstract: 111,512. Railing, A. H., Peacock, A., and Hutchinson, T. H. Nov. 25, 1916. Metal-sheet feeds.- A feed-mechanism for power presses is actuated by momentary engagement of a clutch after each operation of the press. The operation of a handle 5, Fig. 1, simultaneously closes jaws to grip the work and a plate 22, Fig. 4, to grip the endless band 6 which is intermittently advanced by bevelgear 39, clutch 30, and variable - speed beltgearing 34. The clutch is closed after each operation of the press by a cam 31, Fig. 8, acting through a spring 41. The handle 5 has inclines to engage sleeves 44, Fig. 4, which, acting through springs 45, move the lever 19 and plate 22 to clamp the band 6 and also the slotted lever 4 and lever 1 to clamp the work between jaws 10. The handle 5 is pivoted to a lever 27 having a roller 26 which engages an incline 25 at the end of the table and thus releases the gripping-jaws &c. which are returned by a weight. The table 24 is supported at its outer end by an adjustable frame 60, Figs. 1 and 2, and is pivoted to an adjustable bracket 64. In a modification, the work is fed by rollers 50, Fig. 11, driven through the clutch 30, side rollers 54 being provided to guide the strip. Specifications 22104/14 and 111.511, [Class 80 (ii), Gearing. Variable speed &c.], are referred to.
Patent GB-1061658-A (GB)
Title: New hydroxyindazolium compounds and their use in the preparation of monoazo dyestuffs
Inventor: SUREAU ROBERT FREDERIC MICHEL
IPC: C09B44/14
Filed: 1964-04-24
Abstract: Monoazo dyes of formula <FORM:1061658/C4-C5/1> wherein Z is the residue of a diazotizable aromatic amine which may be substituted other than by acid-dissociating water-solubilizing groups (e.g. by halogen, alkyl, nitro, alkoxy, cyano, carboxylic ester, trifluoromethyl, fluorosulphonyl, phenoxy, sulphonamide, amino and acylamino), A is an anion and "alkyl" is methyl or ethyl are prepared by coupling.  They are used to colour acrylonitrile polymers and copolymers in yellow, orange red and bordeaux shades.ALSO:The invention comprises the 1,2-dialkyl-6-hydroxy-indazolium salts of formula <FORM:1061658/C2/1> wherein A is an anion and each alkyl group contains 1 or 2 carbon atoms.  The compounds are prepared by the hydrolysis in dilute H2SO4 at 180-190 DEG  C. of the corresponding 1,2-dialkyl-6-amino-indazolium salts.  They are used as coupling compounds in the preparation of azo dyes (see Division C4).
Patent GB-418764-A (GB)
Title: Improvements in four-stroke-cycle internal-combustion engines in which pairs of pistons are acted on by the same impulse
IPC: F02B25/12
Filed: 1933-06-15
Abstract: 418,764. Four-stroke engines ; valve gear. SCOTT, B. D., Camp, Miserden, near Stroud, Gloucestershire. June 15, 1933, No. 17034. [Classes 7 (ii) and 7 (vi).] In a four-stroke engine of the type in which a pair of pistons are subject to the same impulse, separate inlet and exhaust valves c are actuated by cams k preferably acting directly on the valves and each provided with two lobes so as to be rotated at half the usual speed. The two cam shafts may be driven by a spider or frame l, Fig. 2, and crank discs q, n, the latter being a gear wheel meshing with a pinion o on the crank shaft. An extension of the frame l may actuate a pump or other part by means of a crank r. A second frame s driven by a crank t may actuate other cranks u, v associated with the magneto, water-circulating pump, dynamo, &c. One of the pistons e, Fig. 1, has its connecting-rod h attached to a pivot i on the other connecting-rod g, the pivot being in front of the rod g considered with regard to the direction of rotation.
Patent GB-643160-A (GB)
Title: Improved hydraulic transmission and braking system
IPC: B60K17/10
Filed: 1947-06-27
Abstract: 643,160. Centrifugal pumps; rotary engines. RICHARDS, R. D. June 27, 1947, No. 17035. [Classes 110(i) and 110(ii)] [Also in Groups XXIX, XXXI and XXXIV] Fig. 1 shows a variable capacity centrifugal pump comprising a casing 2 and impeller 1, the capacity being variable by sliding a piston 4 in its cylinder 3. The piston is controlled by a centrifugal governor 8, 9 and a manual control 11 by which the load on the governor spring 10 can be varied. Figs. 3 and 4 show a vane type motor comprising a rotor 18, vanes 16 and a fixed track member 17. Passages are formed in the track member to lead liquid to and away from spaces between the vanes 16. The rotor housing 18 may be bolted to the hub of a vehicle wheel by bolts 18a.